How to ensure the environmental and economic benefits of circularity transition at macro-scale?

The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…

Although Sander Wezenberg just started working in Leiden in March this year, he already managed to win a Vidi grant from NWO. Inspired by nature, Wezenberg wants to bring synthetic molecules to life and teach them to communicate. But who exactly is Wezenberg and what drives him?

Ms. Anaïs Massot defended her thesis on 26 January 2021

The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…

In recent decades, the Netherlands’ struggle with multiculturalism has caused an upsurge in public interest in the relationship between state and religion. In this, the Dutch address a subject relevant not just to them, but to all of Europe.

Climate change is a hot topic and constantly in the news. Thousands of Dutch high school students protested at the Malieveld in The Hague. News website Nu.nl has barred climate change deniers from their comments section to prevent ‘fake news’. How does climate change impact the research community, and…

In this paper, Sarah Giest and Bram Klievink highlight the effects of AI implementation on public sector innovation. This is explored by asking how AI-driven technologies in public decision-making in different organizational contexts impacts innovation in the role definition of bureaucrats.

Can astronomers mitigate climate change? This is what Leiden astronomer Leonard Burtscher and his colleagues discussed at the annual meeting of the European Astronomical Society. For the second year in a row, the meeting was online. And according to Burtscher, it should stay that way. During a special…

Halfway through his career alumnus Marc Tijhuis made a radical change: he left the corporate world to join the global battle against waste with the International Solid Waste Association.

This thesis describes the synthesis and biochemical evaluation of a variety of cyclophellitol based activity-based probes and inhibitors targeting various endo- and exo-acting retaining glycosidases. In the last two decades a variety of probes and inhibitors for (hemi)cellulose degrading enzymes have…

With increasing carbon dioxide levels in the atmosphere and their detrimental effect on the global climate, modern society needs to push for more renewable energy sources. Storing widely accessible and abundant solar energy in chemical bonds in the form of molecular fuel via artificial photosynthesis…

The electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…

In the last decade, the redox interconversion between metal thiolate and disulfide compounds has been extensively investigated for copper, but not for other transition metal ions.

Promotor: Prof.dr. P.G.L Klinkhamer

Chaider Bamualim defended his thesis on 9 September 2015

This thesis describes the use of an activity-based proteomics method to study the endocannabinoid system.

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

This thesis introduces the concept of

The importance of a healthy lifestyle does not receive the attention it deserves, as the coronavirus pandemic made painfully clear. Twelve behavioural scientists, including Professor Behavioral Interventions in Population Health Management Marieke Adriaanse and Professor of Health Psychology Andrea…

Our previous meta-analysis (Swart et al., 2019) had shown that feedback targeting text comprehension given when students perform a reading task positively influences learning from text. So far, differences in the effects of feedback were explained by design features, such as the timing and richness…

Conference

Hans Slabbekoorn, researcher at the Institute of Biology Leiden, is from the 16th to the 26th of July on board of the Pelagia, the Dutch national sea research vessel, which is currently on a collaborative mission for the National Initiative Changing Oceans (NICO). Slabbekoorn will study the effects…

On Thursday November 9th, 2017 at 13:45h, Reijer Passchier will be defending his dissertation in the Groot Auditorium of Leiden University. His thesis supervisor is Professor Wim Voermans. All are welcome!

Do Ethiopian wolves change their diet and foraging strategy in the landscape under different land uses? How land use affect Afro-alpine rodent Communities? How important are Afro-alpine natural resources utilisation for local livelihoods? What is the human perception of conflict in the Afro-alpine a…

Brain researcher Elseline Hoekzema has discovered that the structure of the brain changes during pregnancy, particularly those areas related to social functions. These changes persist for at least two years after the mother gives birth. Publication in Nature Neuroscience on 19 December.

The annual meeting of the European Group of Public Law (EGPL) took place on 13 and 14 September 2024 in Legrena, Greece.

The NestWacht project is a Citizen Science collaboration between Science Centre Delft, Naturalis, and the Citizen Science Lab of Leiden University to engage individuals, families and primary schools in Leiden and Delft in scientific research on the impact of climate change on nature in their city, and…

As most of you are well aware of, Climate Change has been an ongoing and pressing topic, and therefore deserves our close attention. What and how exactly happens during Climate Change? What are the effects of it? AND possibly most importantly, what can WE as students do about it?

Environmental researcher Paul Behrens generated both international as national media attention with his recent publication in Nature Energy. The media included Science Daily, Quartz and the Dutch financial newspaper Financieel Dagblad. In his publication, Behrens warns for possible power disruptions…

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Education & outreach

Symposium

Bachelor and Master students of all chemistry related studies are more than welcome to take part in our research activities. We have projects on design and synthesis of biologically relevant compounds within an ongoing research project. Supervision, following the apprentice/teacher model, is one of…

Research training projects in the MCBIM group - Bachelor and master students of all chemistry related studies are more than welcome to take part in our research activities. We have various research projects, all in one way or another involving transition metal ions. Daily supervision in the laboratory…

This thesis describes the use of bioorthogonal proteins in immunological settings. It provides an introduction towards the field of protein modification, which was used throughout the thesis for the expression of proteins containing unnatural amino acids.

Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.

The global agri-food system plays a critical role in food security and environmental issues.

The oil pipeline in Dakota, the widening of the motorway near Stonehenge, the construction of dams in Turkey and Iraq: newspapers and social media are full of alarming articles about threats to heritage as a result of large-scale construction work. Heritage experts at Leiden University have developed…

This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.

With a MSc in Chemistry you are well prepared for a wide range of career opportunities. The chemical industry is one of the largest contributors to economic prosperity worldwide.

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